Installation Manual

Using an AGS Module: Troubleshooting
Page 106 © 2017 Sensata Technologies
8.3.2 Resolving AGS Faults using your Router
For the nine faults that follow, refer to the Remedy immediately following the list.
• Fault Amp – The generator failed to autostart and run per the 04C Gen Run AC Amps menu’s
start parameters.
• Fault Exercise – The generator failed to autostart and run per the 04H Gen Exercise menu’s
start parameters.
• Fault Gen Run – The generator successfully started and ran for over two minutes, but the
generator unexpectedly stopped before the active AGS autostop condition was fi nished.
Info: The AGS module determines the generator is running by monitoring the gen run
sense voltage/signal. When this gen run sense voltage/signal is no longer available, the
AGS thinks the gen is off or has stopped.
Info: Gen run fault detection not active if generator is manually started or if Gen Type
switch is set to “2-Wire Standby”—which does not require a gen run sense voltage.
Remedy: a) If the generator is still running: Confi rm you are getting the correct gen
run sense signal to the AGS module.
b) If the generator is not running: Check the generator for fault codes and adequate
fuel. If neither is an issue, check the generator’s owner’s manual for troubleshooting
tips to determine why it may have shut down on its own.
• Fault MaxRn – The generator has run longer than expected and has met or exceeded the
SETUP: 04F Max Gen Run Time setting. The AGS attempts to turn the generator off—after
autostarting—when this fault occurs.
Info: The Max Gen Run Time menu uses the SETUP: 04B Gen Run Time settings to
determine the generator’s run time. Cooldown and warm-up times are not included in
the Gen Run Time display.
Remedy: Confi rm that all the autostop parameters that are active or enabled can be
satisfi ed before the SETUP: 04F Max Gen Run Time setting is reached.
• If using the SETUP: 04A Gen Run Volts DC menu’s parameters:
– with a battery voltage setting to autostop, ensure the autostop voltage is less than
the temperature-compensated absorb charge voltage.
– with the “Float” setting to autostop, ensure the time that the charger is in the Bulk
Charge and Absorb Charge¹ stages is shorter than the 04F Max Gen Run Time setting.
Refer to the SETUP: 04A Gen Run DC Volts section (page 82) for additional information.
Note¹: Several conditions determine the length of time that the charger is in the
Absorb Charge stage. Ensure the SETUP: 03D Absorb Done (Time, Amps, or SOC)
setting—determines when the Absorb Charge stage is complete and enters the Float
stage—is taken into account when setting the 04F Max Gen Run Time setting.
• If using SETUP: 04B Gen Run Time, confi rm you have not set the total run time (start
time to the stop time) longer than the SETUP: 04F Max Gen Run Time setting.
• If using SETUP: 04C Gen Run AC Amps, confi rm the inverter load(s) that is used to
determine the Stop AC Amps setting is not required to run longer than the SETUP: 04F
Max Gen Run Time setting.
• If using SETUP: 04D Gen Run SOC, confi rm the METER: 05A BMK SOC reading is not
“ Think’n”, but shows an actual % reading (e.g., 85%), and the Stop SOC setting can
be satisfi ed before reaching the SETUP: 04F Max Gen Run Time setting.
• If using SETUP: 04E Gen Run Temp, the temperature around the remote temperature
sensor has not reached the Gen Run Temp setting. You need to either lower the
Start Temp setting, determine how to cool the area (remote temp sensor location) to
below the Start Temp setting before the 04F Max Gen Run Time setting is reached, or
increase the Max Gen Run Time setting.
• Lastly, confi rm that your warm-up and/or cooldown time when added to your autostop
condition does not exceed the SETUP: 04F Max Gen Run Time setting.